Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

184563 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 4735, results 118351 - 118375

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Map projections: A working manual
John P. Snyder
1987, Professional Paper 1395
After decades of using only one map projection, the Polyconic, for its mapping program, the U.S. Geological Survey (USGS) now uses several of the more common projections for its published maps. For larger scale maps, including topographic quadrangles and the State Base Map Series, conformal projections such as the Transverse...
Streamflow gain and loss of selected streams in northern Arkansas
David A. Freiwald
1987, Water-Resources Investigations Report 86-4185
This map shows streamflow gain and loss measurements (seepage runs) on the Crooked, Osage, and Spavinaw Creeks, and Illinois, Kings, Mulberry, Spring, and Strawberry Rivers during the low-flow conditions from September 1982 to October 1984. Data indicated that streamflow gains and losses resulted from differences in lithology of the predominately...
Chemical characteristics of water in the surficial aquifer system, Broward County, Florida
Barbara Howie
1987, Water-Resources Investigations Report 86-4330
Water quality data was collected in 1981 and 1982 during the drilling of test holes at 27 sites throughout Broward County, Florida. Determinations were made for the following physical properties and chemical constituents: pH, alkalinity, specific conductance, major ions, selected nutrients and dissolved iron, aluminum, and manganese. Determinations for the...
Water quality of Lake Tuscaloosa and streamflow and water quality of selected tributaries to Lake Tuscaloosa, Alabama, 1982-86
L. J. Slack
1987, Water-Resources Investigations Report 87-4002
Lake Tuscaloosa, created in 1969 by the impoundment of North River, provides the primary water supply for Tuscaloosa, Alabama , and surrounding areas. This report describes the percent contribution of major tributaries to the mean inflow to the lake; water quality; and changes in water quality in the lake and...
Lithology and base of the surficial aquifer system, Palm Beach County, Florida
Wesley L. Miller
1987, Water-Resources Investigations Report 86-4067
The surficial aquifer system is a major source of freshwater in Palm Beach County. In 1982, public supply withdrawals from the aquifer system totaled 33,543 million gallons, 77.5% of total public supply withdrawals. To evaluate the aquifer system and its geologic framework, a cooperative study with Palm Beach County was...
Hydrogeology of the Olean area, Cattaraugus County, New York
Phillip J. Zarriello, Richard J. Reynolds
1987, Water-Resources Investigations Report 85-4157
Most principal aquifers in upstate New York are unconsolidated glacial and alluvial deposits within bedrock valleys. Groundwater in these aquifers can be under either water table (unconfined) or artesian (confined) conditions. Farms, industries, or towns and cities have been built upon many of these aquifers because they form level areas...
Ground-water conditions in Avra Valley, Pima and Pinal Counties, Arizona -1985
Melinda K. Cuff, S. R. Anderson
1987, Water-Resources Investigations Report 87-4192
Avra Valley is a north-trending alluvial basin about 15 mi west of Tucson in Pima and Pinal Counties in south-central Arizona. The valley includes about 520 sq mi of which about 100 sq mi is in the San Xavier Indian Reservation. The basin is bounded on the east by the...
Water-level maps of the alluvial aquifer in eastern Arkansas, 1985
Maria Plafcan, D.T. Fugitt
1987, Water-Resources Investigations Report 86-4178
Maps shown in this report show the potentiometric surface of the alluvial aquifer before and after the pumping season of 1985, the depth-to-water in the spring of 1985, and the change in water levels between the spring of 1980 and the spring of 1985. Hydrographs showing long-term water-level changes in...
Percentage change in saturated thickness of the High Plains aquifer, west-central Kansas, 1950 to average 1985-87
Barbara J. Dague
1987, Water-Resources Investigations Report 87-4252
Continuing studies are being made in west-central Kansas to provide up-to-date information that will aid in the management of groundwater for irrigation. This report, prepared by the U.S> Geological Survey in cooperation with the Western Kansas Groundwater Management District No. 1,  presents the results of the seventh in a series...
Hydrogeology of the Salamanca area, Cattaraugus County, New York
Phillip J. Zarriello
1987, Water-Resources Investigations Report 85-4149
The hydrogeology of a 132-sq mi area centered at Salamanca, NY, is summarized in five maps at 1:24,000 scale. The maps show locations of wells and test holes, surficial geology and geologic sections, water-table surface, soil permeability, and land use. The valley-fill aquifer in the Salamanca area serves approximately 7,000...
Louisiana ground-water map no. 1: Potentiometric surface, 1985, and water-level changes, 1983-85, of the Chicot aquifer in southwestern Louisiana
Robert B. Fendick Jr., Dale J. Nyman
1987, Water-Resources Investigations Report 86-4348
The Chicot aquifer is the principle source of groundwater in southwestern Louisiana and is the most extensively pumped (nearly 1 billion gallons per day) aquifer in the State. Withdrawals from the Chicot aquifer are used primarily for irrigation. Two maps show the generalized potentiometric surfaces of the upper sand unit...